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渲染只能占最多20%
渲染在游戏引擎中
GPUSIMD and SIMT

数据从cpu到GPU
缓存的影响

其他平台的显卡架构
可绘制的网格渲染组件

法线顶点存法线
防止正,"> 
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        <h1 class="title">Games104第4节记录</h1>
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            <span>四月 04, 2022</span>
            
  <ul class="post-tags-list" itemprop="keywords"><li class="post-tags-list-item"><a class="post-tags-list-link" href="/blog/tags/%E5%BC%95%E6%93%8E%E5%88%B6%E4%BD%9C/" rel="tag">引擎制作</a></li></ul>


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            <h1 id="游戏渲染的挑战"><a href="#游戏渲染的挑战" class="headerlink" title="游戏渲染的挑战"></a>游戏渲染的挑战</h1><p><img src="https://img-blog.csdnimg.cn/89157de1c7774ef1aa07522e078e9dad.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBAUEMgRXJyb3I=,size_17,color_FFFFFF,t_70,g_se,x_16" alt="在这里插入图片描述"></p>
<p><img src="https://img-blog.csdnimg.cn/23dfe2cb80ac45288e9f972fa8d0c9b1.png" alt="在这里插入图片描述"></p>
<p><img src="https://img-blog.csdnimg.cn/c5076d29a380491493992c71ead34a7c.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBAUEMgRXJyb3I=,size_15,color_FFFFFF,t_70,g_se,x_16" alt="在这里插入图片描述"></p>
<p>渲染只能占最多20%</p>
<h1 id="渲染在游戏引擎中"><a href="#渲染在游戏引擎中" class="headerlink" title="渲染在游戏引擎中"></a>渲染在游戏引擎中</h1><p><img src="https://img-blog.csdnimg.cn/864a17f45d4f40b6b7951841e767337e.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBAUEMgRXJyb3I=,size_20,color_FFFFFF,t_70,g_se,x_16" alt="在这里插入图片描述"></p>
<h1 id="GPU"><a href="#GPU" class="headerlink" title="GPU"></a>GPU</h1><h2 id="SIMD-and-SIMT"><a href="#SIMD-and-SIMT" class="headerlink" title="SIMD and SIMT"></a>SIMD and SIMT</h2><p><img src="https://img-blog.csdnimg.cn/7642173d71924ba189add8d655e916ad.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBAUEMgRXJyb3I=,size_20,color_FFFFFF,t_70,g_se,x_16" alt="在这里插入图片描述"></p>
<p><img src="https://img-blog.csdnimg.cn/253a2ce07ae944838a253c4e725c7ba5.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBAUEMgRXJyb3I=,size_20,color_FFFFFF,t_70,g_se,x_16" alt="在这里插入图片描述"></p>
<h2 id="数据从cpu到GPU"><a href="#数据从cpu到GPU" class="headerlink" title="数据从cpu到GPU"></a>数据从cpu到GPU</h2><p><img src="https://img-blog.csdnimg.cn/70216ab2815342018a2c2003cf095ec1.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBAUEMgRXJyb3I=,size_20,color_FFFFFF,t_70,g_se,x_16" alt="在这里插入图片描述"></p>
<h2 id="缓存的影响"><a href="#缓存的影响" class="headerlink" title="缓存的影响"></a>缓存的影响</h2><p><img src="https://img-blog.csdnimg.cn/3642871673eb444fa52cdf9247996a56.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBAUEMgRXJyb3I=,size_20,color_FFFFFF,t_70,g_se,x_16" alt="在这里插入图片描述"></p>
<p><img src="https://img-blog.csdnimg.cn/f526d65995164481b1be3f88ec161c2e.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBAUEMgRXJyb3I=,size_20,color_FFFFFF,t_70,g_se,x_16" alt="在这里插入图片描述"></p>
<h2 id="其他平台的显卡架构"><a href="#其他平台的显卡架构" class="headerlink" title="其他平台的显卡架构"></a>其他平台的显卡架构</h2><p><img src="https://img-blog.csdnimg.cn/0e790c8ca84342b28b908c5aa276d6b8.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBAUEMgRXJyb3I=,size_20,color_FFFFFF,t_70,g_se,x_16" alt="在这里插入图片描述"></p>
<h1 id="可绘制的"><a href="#可绘制的" class="headerlink" title="可绘制的"></a>可绘制的</h1><h2 id="网格渲染组件"><a href="#网格渲染组件" class="headerlink" title="网格渲染组件"></a>网格渲染组件</h2><p><img src="https://img-blog.csdnimg.cn/a164ee1a5c8d4bb3b81cf07ce3cb181f.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBAUEMgRXJyb3I=,size_20,color_FFFFFF,t_70,g_se,x_16" alt="在这里插入图片描述"></p>
<p><img src="C:\Users\27371\AppData\Roaming\Typora\typora-user-images\image-20220404203718480.png" alt="image-20220404203718480"></p>
<h1 id="法线"><a href="#法线" class="headerlink" title="法线"></a>法线</h1><p>顶点存法线</p>
<p>防止正方形的角部分的法线</p>
<h1 id="材质"><a href="#材质" class="headerlink" title="材质"></a>材质</h1><h1 id="绘制物体在引擎中"><a href="#绘制物体在引擎中" class="headerlink" title="绘制物体在引擎中"></a>绘制物体在引擎中</h1><h2 id="坐标系统和转换"><a href="#坐标系统和转换" class="headerlink" title="坐标系统和转换"></a>坐标系统和转换</h2><p>MVP转化</p>
<h2 id="提高性能"><a href="#提高性能" class="headerlink" title="提高性能"></a>提高性能</h2><p>实例化</p>
<p>如果可以复用的化</p>
<p><img src="https://img-blog.csdnimg.cn/1fc9d34fb69b45b0b61ce665c02b5631.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBAUEMgRXJyb3I=,size_20,color_FFFFFF,t_70,g_se,x_16" alt="在这里插入图片描述"></p>
<h2 id="材质排序"><a href="#材质排序" class="headerlink" title="材质排序"></a>材质排序</h2><p>哇，GPU：你他妈就这样换数据，到底烦不烦呀</p>
<p><img src="https://img-blog.csdnimg.cn/a70c8d19e9eb4765a6f842c76232b9b3.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBAUEMgRXJyb3I=,size_20,color_FFFFFF,t_70,g_se,x_16" alt="在这里插入图片描述"></p>
<h2 id="GPU批处理渲染"><a href="#GPU批处理渲染" class="headerlink" title="GPU批处理渲染"></a>GPU批处理渲染</h2><p><img src="https://img-blog.csdnimg.cn/a46a1351fb894a2592f8f0b962addea5.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBAUEMgRXJyb3I=,size_20,color_FFFFFF,t_70,g_se,x_16" alt="在这里插入图片描述"></p>
<h2 id="使用包围盒裁剪"><a href="#使用包围盒裁剪" class="headerlink" title="使用包围盒裁剪"></a>使用包围盒裁剪</h2><p><img src="https://img-blog.csdnimg.cn/106511939432458597771d80305b6805.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBAUEMgRXJyb3I=,size_20,color_FFFFFF,t_70,g_se,x_16" alt="在这里插入图片描述"></p>
<h2 id="四叉树进行裁剪"><a href="#四叉树进行裁剪" class="headerlink" title="四叉树进行裁剪"></a>四叉树进行裁剪</h2><p><img src="https://img-blog.csdnimg.cn/6c61e38da9e54420b26a188cebec6ace.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBAUEMgRXJyb3I=,size_20,color_FFFFFF,t_70,g_se,x_16" alt="在这里插入图片描述"></p>
<h3 id="PVS"><a href="#PVS" class="headerlink" title="PVS"></a>PVS</h3><p><img src="https://img-blog.csdnimg.cn/aaef94f0698943bbb04cb280e42d10e1.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBAUEMgRXJyb3I=,size_20,color_FFFFFF,t_70,g_se,x_16" alt="在这里插入图片描述"></p>
<p><img src="https://img-blog.csdnimg.cn/e507aff76f8d4e98852bc465f6196067.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBAUEMgRXJyb3I=,size_20,color_FFFFFF,t_70,g_se,x_16" alt="在这里插入图片描述"></p>
<h2 id="GPU-Culling"><a href="#GPU-Culling" class="headerlink" title="GPU Culling"></a>GPU Culling</h2><p><img src="https://img-blog.csdnimg.cn/6d836e7b3b4d4a419a8a6f5a8b9fd591.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBAUEMgRXJyb3I=,size_20,color_FFFFFF,t_70,g_se,x_16" alt="在这里插入图片描述"></p>
<h1 id="纹理压缩"><a href="#纹理压缩" class="headerlink" title="纹理压缩"></a>纹理压缩</h1><p><img src="https://img-blog.csdnimg.cn/efda019f0d1b40908021735e87db6214.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBAUEMgRXJyb3I=,size_20,color_FFFFFF,t_70,g_se,x_16" alt="在这里插入图片描述"></p>
<p><img src="https://img-blog.csdnimg.cn/26ed47d54b7d4a83be7a2e94e9ccf0f5.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBAUEMgRXJyb3I=,size_20,color_FFFFFF,t_70,g_se,x_16" alt="在这里插入图片描述"></p>
<h1 id="美术工具"><a href="#美术工具" class="headerlink" title="美术工具"></a>美术工具</h1><p><img src="https://img-blog.csdnimg.cn/f9d3c48e556547bb93e171f3179cc031.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBAUEMgRXJyb3I=,size_20,color_FFFFFF,t_70,g_se,x_16" alt="在这里插入图片描述"></p>
<h1 id="网格管线"><a href="#网格管线" class="headerlink" title="网格管线"></a>网格管线</h1><p><img src="https://img-blog.csdnimg.cn/07815bc68a484e2c8f23d90c8e472e4f.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBAUEMgRXJyb3I=,size_20,color_FFFFFF,t_70,g_se,x_16" alt="在这里插入图片描述"></p>
<p><img src="https://img-blog.csdnimg.cn/0d86c673dc0c484f840e1741faa3344d.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBAUEMgRXJyb3I=,size_20,color_FFFFFF,t_70,g_se,x_16" alt="在这里插入图片描述"></p>
<p><img src="https://img-blog.csdnimg.cn/a4e82a9e71114b62babc725699a98831.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBAUEMgRXJyb3I=,size_20,color_FFFFFF,t_70,g_se,x_16" alt="在这里插入图片描述"></p>
<h1 id="总结"><a href="#总结" class="headerlink" title="总结"></a>总结</h1><p><img src="https://img-blog.csdnimg.cn/48330c71f9c3424ea621d36015dc3223.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBAUEMgRXJyb3I=,size_20,color_FFFFFF,t_70,g_se,x_16" alt="在这里插入图片描述"></p>

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			<ol class="toc"><li class="toc-item toc-level-1"><a class="toc-link" href="#%E6%B8%B8%E6%88%8F%E6%B8%B2%E6%9F%93%E7%9A%84%E6%8C%91%E6%88%98"><span class="toc-number">1.</span> <span class="toc-text">游戏渲染的挑战</span></a></li><li class="toc-item toc-level-1"><a class="toc-link" href="#%E6%B8%B2%E6%9F%93%E5%9C%A8%E6%B8%B8%E6%88%8F%E5%BC%95%E6%93%8E%E4%B8%AD"><span class="toc-number">2.</span> <span class="toc-text">渲染在游戏引擎中</span></a></li><li class="toc-item toc-level-1"><a class="toc-link" href="#GPU"><span class="toc-number">3.</span> <span class="toc-text">GPU</span></a><ol class="toc-child"><li class="toc-item toc-level-2"><a class="toc-link" href="#SIMD-and-SIMT"><span class="toc-number">3.1.</span> <span class="toc-text">SIMD and SIMT</span></a></li><li class="toc-item toc-level-2"><a class="toc-link" href="#%E6%95%B0%E6%8D%AE%E4%BB%8Ecpu%E5%88%B0GPU"><span class="toc-number">3.2.</span> <span class="toc-text">数据从cpu到GPU</span></a></li><li class="toc-item toc-level-2"><a class="toc-link" href="#%E7%BC%93%E5%AD%98%E7%9A%84%E5%BD%B1%E5%93%8D"><span class="toc-number">3.3.</span> <span class="toc-text">缓存的影响</span></a></li><li class="toc-item toc-level-2"><a class="toc-link" href="#%E5%85%B6%E4%BB%96%E5%B9%B3%E5%8F%B0%E7%9A%84%E6%98%BE%E5%8D%A1%E6%9E%B6%E6%9E%84"><span class="toc-number">3.4.</span> <span class="toc-text">其他平台的显卡架构</span></a></li></ol></li><li class="toc-item toc-level-1"><a class="toc-link" href="#%E5%8F%AF%E7%BB%98%E5%88%B6%E7%9A%84"><span class="toc-number">4.</span> <span class="toc-text">可绘制的</span></a><ol class="toc-child"><li class="toc-item toc-level-2"><a class="toc-link" href="#%E7%BD%91%E6%A0%BC%E6%B8%B2%E6%9F%93%E7%BB%84%E4%BB%B6"><span class="toc-number">4.1.</span> <span class="toc-text">网格渲染组件</span></a></li></ol></li><li class="toc-item toc-level-1"><a class="toc-link" href="#%E6%B3%95%E7%BA%BF"><span class="toc-number">5.</span> <span class="toc-text">法线</span></a></li><li class="toc-item toc-level-1"><a class="toc-link" href="#%E6%9D%90%E8%B4%A8"><span class="toc-number">6.</span> <span class="toc-text">材质</span></a></li><li class="toc-item toc-level-1"><a class="toc-link" href="#%E7%BB%98%E5%88%B6%E7%89%A9%E4%BD%93%E5%9C%A8%E5%BC%95%E6%93%8E%E4%B8%AD"><span class="toc-number">7.</span> <span class="toc-text">绘制物体在引擎中</span></a><ol class="toc-child"><li class="toc-item toc-level-2"><a class="toc-link" href="#%E5%9D%90%E6%A0%87%E7%B3%BB%E7%BB%9F%E5%92%8C%E8%BD%AC%E6%8D%A2"><span class="toc-number">7.1.</span> <span class="toc-text">坐标系统和转换</span></a></li><li class="toc-item toc-level-2"><a class="toc-link" href="#%E6%8F%90%E9%AB%98%E6%80%A7%E8%83%BD"><span class="toc-number">7.2.</span> <span class="toc-text">提高性能</span></a></li><li class="toc-item toc-level-2"><a class="toc-link" href="#%E6%9D%90%E8%B4%A8%E6%8E%92%E5%BA%8F"><span class="toc-number">7.3.</span> <span class="toc-text">材质排序</span></a></li><li class="toc-item toc-level-2"><a class="toc-link" href="#GPU%E6%89%B9%E5%A4%84%E7%90%86%E6%B8%B2%E6%9F%93"><span class="toc-number">7.4.</span> <span class="toc-text">GPU批处理渲染</span></a></li><li class="toc-item toc-level-2"><a class="toc-link" href="#%E4%BD%BF%E7%94%A8%E5%8C%85%E5%9B%B4%E7%9B%92%E8%A3%81%E5%89%AA"><span class="toc-number">7.5.</span> <span class="toc-text">使用包围盒裁剪</span></a></li><li class="toc-item toc-level-2"><a class="toc-link" href="#%E5%9B%9B%E5%8F%89%E6%A0%91%E8%BF%9B%E8%A1%8C%E8%A3%81%E5%89%AA"><span class="toc-number">7.6.</span> <span class="toc-text">四叉树进行裁剪</span></a><ol class="toc-child"><li class="toc-item toc-level-3"><a class="toc-link" href="#PVS"><span class="toc-number">7.6.1.</span> <span class="toc-text">PVS</span></a></li></ol></li><li class="toc-item toc-level-2"><a class="toc-link" href="#GPU-Culling"><span class="toc-number">7.7.</span> <span class="toc-text">GPU Culling</span></a></li></ol></li><li class="toc-item toc-level-1"><a class="toc-link" href="#%E7%BA%B9%E7%90%86%E5%8E%8B%E7%BC%A9"><span class="toc-number">8.</span> <span class="toc-text">纹理压缩</span></a></li><li class="toc-item toc-level-1"><a class="toc-link" href="#%E7%BE%8E%E6%9C%AF%E5%B7%A5%E5%85%B7"><span class="toc-number">9.</span> <span class="toc-text">美术工具</span></a></li><li class="toc-item toc-level-1"><a class="toc-link" href="#%E7%BD%91%E6%A0%BC%E7%AE%A1%E7%BA%BF"><span class="toc-number">10.</span> <span class="toc-text">网格管线</span></a></li><li class="toc-item toc-level-1"><a class="toc-link" href="#%E6%80%BB%E7%BB%93"><span class="toc-number">11.</span> <span class="toc-text">总结</span></a></li></ol>	
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